MALICIOUS — roblox-online-free-no-download_GM431946152.pdf

MALICIOUS — roblox-online-free-no-download_GM431946152.pdf is a pdf sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (75/100). 4 of 50 detection engines flagged it, exhibiting 3 ATT&CK techniques.

Identification

SHA-256: 99356af0227966fcff11aedd2e6b638459f2ad34a122f9a6e060e74cb2d9c246
SHA-1: 71d8b3fe4ba0fdf9997e73f48cb3928513e3a019
MD5: b0f63f7fb58f10c3c7ba18493ba1e638
ssdeep: 768:rzbbyVEUTjwsfp/wNUeTj76FT/Hxxxi2Vgfll7Zr01FBoL:6GUTdSCeTqDxb+r0bBoL
TLSH: T12F306DF311D7CC4C7A498B476DF6246969C9E388A177EA5080D8B62CE07C5BE7B10522
Submitted as: roblox-online-free-no-download_GM431946152.pdf
File type: pdf · Size: 37079 bytes
Verdict: malicious (75/100)

Detections (4 of 50 engines)

MalwareAnalyser heuristics (entropy/packer): high-entropy-blob
Microsoft Defender: Trojan:PDF/Phish.CFN!MTB
Emsisoft (Emergency Kit): PDF.Spam.Heur.2
Trellix Stinger (McAfee): PDF/Phish-TWM!B0F63F7FB58F

MITRE ATT&CK

Why this verdict

The malicious score of 75/100 is the fusion of 7 weighted signals:

Contacted 14 external host(s) at runtime (3 HTTP) - network signal, weight 0.40, confidence 0.80
Embedded link rated suspicious by URL analysis: http://www.biochemix.com/uploaded_files/userfiles/files/is-there-a-free-way-to-get-robux_GM431946152.pdf - network signal, weight 0.40, confidence 0.60
Embedded network infrastructure: http://netcdn.tw/app/431946152/roblox-online-free-no-download-game-hack, http://www.biochemix.com/uploaded_files/userfiles/files/is-there-a-free-way-to-get-robux_GM431946152.pdf, http://www.biochemix.com/uploaded_files/userfiles/files/free-robux-redeem-codes_GM431946152.pdf - static signal, weight 0.35, confidence 0.60
Document active content: uri-action - static signal, weight 0.30, confidence 0.60
Packing/obfuscation: high-entropy-blob - static signal, weight 0.25, confidence 0.55
Observed at runtime: Modify Registry (T1112) (rule Modify Registry) - dynamic signal, weight 0.12, confidence 0.90
Extracted generic config (20 C2) (generic/advisory) - engine signal, weight 0.15, confidence 0.30

Dynamic analysis (windows)

9646 behavior events · 1 ATT&CK techniques · 3 dropped files.

Runtime network

www.msftconnecttest.com
rb.symcd.com
rb.symcb.com
inference.location.live.net
to-do.office.com
staging.to-do.officeppe.com
teams.cloud.microsoft
outlook.office.com
outlook.office365.com
outlook.cloud.microsoft
250.255.255.239.in-addr.arpa
desktop-hsgcbep._dosvc._tcp.local
b.f.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.f.f.ip6.arpa
3.0.0.0.1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.f.f.ip6.arpa
252.0.0.224.in-addr.arpa
desktop-hsgcbep
2.0.0.0.1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.f.f.ip6.arpa
ntp.ubuntu.com
255.255.254.169.in-addr.arpa
251.0.0.224.in-addr.arpa

Dropped files

C:\Users\analyst\AppData\Local\SumatraPDF\SumatraPDF-settings.txt - a0adced0b406122a0e42f00af07303c95df79203f5ac5b93d6b1635d4493224a
C:\Users\analyst\AppData\Local\SumatraPDF\sumatrapdfcache\be66755ff989caa1b2ce3c6bc5609905.png - 43f14c69c25b20ed282f7c96d5026d07a9cb8457a7e27e423ffb79f63e9d5ee1
root_.cache_dconf_user - 96a296d224f285c67bee93c30f8a309157f0daa35dc5b87e410b78630a09cfc7

Embedded URLs

http://netcdn.tw/app/431946152/roblox-online-free-no-download-game-hack
http://www.biochemix.com/uploaded_files/userfiles/files/is-there-a-free-way-to-get-robux_GM431946152.pdf
http://www.biochemix.com/uploaded_files/userfiles/files/free-robux-redeem-codes_GM431946152.pdf
http://www.biochemix.com/uploaded_files/userfiles/files/roblox-free-robux-hackoblox_GM431946152.pdf
http://www.biochemix.com/uploaded_files/userfiles/files/roblox-free-super-power-trainin-vip-server_GM431946152.pdf
http://www.biochemix.com/uploaded_files/userfiles/files/roblox-mobile-hack-tool-download_GM431946152.pdf
http://www.biochemix.com/uploaded_files/userfiles/files/how-do-you-hack-roblox-players_GM431946152.pdf
http://www.biochemix.com/uploaded_files/userfiles/files/how-do-you-hack-admin-on-roblox_GM431946152.pdf
http://www.biochemix.com/uploaded_files/userfiles/files/free-robux-co_GM431946152.pdf
http://www.biochemix.com/uploaded_files/userfiles/files/free-coins-coin-master-blog_GM406889139.pdf
http://www.biochemix.com/uploaded_files/userfiles/files/how-to-get-free-money-in-roblox-lumber-tycoon-2_GM431946152.pdf
http://www.biochemix.com/uploaded_files/userfiles/files/free-roblox-render_GM431946152.pdf
http://www.biochemix.com/uploaded_files/userfiles/files/how-to-get-free-robux-by-playing-games_GM431946152.pdf
http://www.biochemix.com/uploaded_files/userfiles/files/get-free-cards-in-coin-master_GM406889139.pdf
http://www.biochemix.com/uploaded_files/userfiles/files/free-spins-on-coin-master_GM406889139.pdf
http://www.biochemix.com/uploaded_files/userfiles/files/cool-roblox-skins-for-free_GM431946152.pdf
http://www.biochemix.com/uploaded_files/userfiles/files/how-to-hack-robux-items-for-free_GM431946152.pdf
http://www.biochemix.com/uploaded_files/userfiles/files/free-robux-real-working-2021_GM431946152.pdf
http://www.biochemix.com/uploaded_files/userfiles/files/jetpack-simulator-hack-roblox_GM431946152.pdf
http://www.biochemix.com/uploaded_files/userfiles/files/free-robux-websites-2021_GM431946152.pdf
http://www.biochemix.com/uploaded_files/userfiles/files/pokemon-go-accounts-free-list-2021_GM1094591345.pdf
http://www.msftconnecttest.com/connecttest.txt
http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D
http://rb.symcb.com/rb.crl
http://203.26.79.13/filestreamingservice//files/753bb2df-a166-494f-aa7d-5678b1ef0c56/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com

Embedded domains

netcdn.tw
www.biochemix.com

Embedded IP addresses

162.159.142.9
20.184.175.10
52.110.12.19
4.230.171.124
52.230.59.222
20.42.73.25
20.76.201.171
52.123.128.14
135.232.92.34
135.233.45.223
203.26.79.13
74.178.240.61
92.223.78.30
142.250.195.227

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